<template lang="html">
  <div>
    <div>countA:{{$store.state.count}}</div>
    <div>
      <button @click="$store.commit('incr')">+</button>
    </div>
    
  </div>
</template>
<script>
export default {
  
}
</script>
<style lang="css">
  
</style>